Connecting the FXS Analog Lifeline
The device supports Analog Lifeline. If the device loses power, for example, due to a power outage or the unplugging of its power cable, it automatically routes calls from a POTS telephone ("lifeline" phone), connected to an FXS port, to the PSTN (instead of the IP network).
The Lifeline is provided by FXS Port # 1. This port connects to the analog POTS phone and the PSTN / PBX using a splitter cable (not supplied). The Lifeline splitter connects pins 1 and 4 to another source of an FXS port, and pins 2 and 3 to the POTS phone.
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The lifeline splitter cable is a separate orderable item. |
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Analog Lifeline cabling is applicable only if the device is ordered with FXS interfaces. |
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The number of supported Lifelines depends on the device’s hardware configuration. For the combined FXS/FXO configuration, one Lifeline is available; for the 12-FXS configuration, up to three Lifelines are available. |
Cable specifications:
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Cable: Splitter cable with RJ-11 connector on one end and two RJ-11 jacks (plugs) on the other end |
RJ-11 Connector Pinouts for FXS Lifeline
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To cable the FXS Lifeline: |
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1.
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Connect the lifeline splitter to FXS Port 1. |
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2.
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On the lifeline splitter cable, do the following: |
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a.
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Connect the analog telephone to Port A. |
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b.
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Connect an analog PSTN line to Port B. |
Cabling FXS Lifeline
